ASN AS6404 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS6404?

AS6404 is listed under FactSet Research Systems, Inc..

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS6404 FactSet Research Systems, Inc.

ASN Lookup Tool

FactSet Research Systems, Inc. factset.com

US 10 Routes

AS Data

AS6404

AS6404 – FactSet Research Systems, Inc.

AS Number	6404
AS Name	FACTSET
Organization	FactSet Research Systems, Inc.(frs-9)
Country	US
Website	factset.com
Number of IPv4 Routes	10
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1996-04-02

ASN Intelligence API for production workflows

Use ASN data for AS6404 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
164.55.254.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256
164.55.245.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256
164.55.248.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256
164.55.242.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256
164.55.252.0/23	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	512
164.55.246.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256
164.55.251.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256
164.55.249.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256
164.55.250.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256
64.209.89.0/24	AS6404	FactSet Research Systems, Inc.	FactSet Research Systems, Inc.	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       6404
ASName:         FACTSET
ASHandle:       AS6404
RegDate:        1996-04-02
Updated:        2006-10-20    
Ref:            https://rdap.arin.net/registry/autnum/6404


OrgName:        FactSet Research Systems, Inc.
OrgId:          FRS-9
Address:        601 Merritt 7
City:           Norwalk
StateProv:      CT
PostalCode:     06851
Country:        US
RegDate:        1996-04-02
Updated:        2023-11-29
Ref:            https://rdap.arin.net/registry/entity/FRS-9


OrgAbuseHandle: VANAM3-ARIN
OrgAbuseName:   Vanam, Sreekanth 
OrgAbusePhone:  +914042988888 
OrgAbuseEmail:  svanam@factset.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/VANAM3-ARIN

OrgTechHandle: VANAM3-ARIN
OrgTechName:   Vanam, Sreekanth 
OrgTechPhone:  +914042988888 
OrgTechEmail:  svanam@factset.com
OrgTechRef:    https://rdap.arin.net/registry/entity/VANAM3-ARIN

OrgNOCHandle: VANAM3-ARIN
OrgNOCName:   Vanam, Sreekanth 
OrgNOCPhone:  +914042988888 
OrgNOCEmail:  svanam@factset.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/VANAM3-ARIN

OrgTechHandle: AYB1-ARIN
OrgTechName:   Bohara, Alefiya Yunus
OrgTechPhone:  +441452915914 
OrgTechEmail:  alefiya.bohara@factset.com
OrgTechRef:    https://rdap.arin.net/registry/entity/AYB1-ARIN

OrgTechHandle: VKS-ARIN
OrgTechName:   Sapavat, Vinod Kumar
OrgTechPhone:  +1-203-810-1000 
OrgTechEmail:  vinodkumar.sapavat@factset.com
OrgTechRef:    https://rdap.arin.net/registry/entity/VKS-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS9299	Philippine Long Distance Telephone Co.	PH
AS9304	HGC Global Communications Limited	HK
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS46887	Crown Castle Fiber LLC	US
AS8220	COLT Technology Services Group Limited	GB
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS63927	RISE ASIA TECHNOLOGY LIMITED	PH
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	NL
AS701	Verizon Business/UUnet	US
AS17819	Equinix Asia Pacific Pte Ltd	SG

Upstreams

AS Number	Description	Country
AS9299	Philippine Long Distance Telephone Co.	PH
AS9304	HGC Global Communications Limited	HK
AS15830	Equinix EMEA Acquisition Enterprises B.V.	NL
AS46887	Crown Castle Fiber LLC	US
AS8220	COLT Technology Services Group Limited	GB
AS63927	RISE ASIA TECHNOLOGY LIMITED	PH
AS17819	Equinix Asia Pacific Pte Ltd	SG
AS3549	Level 3 Parent, LLC	US
AS5580	GTT Communications Netherlands B.V.	NL
AS3356	Level 3 Parent, LLC	US